Auto Parts Search
2003 Lexus ES300 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Lexus REPAIR SHOPS DON'T WANT YOU TO KNOW
Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!Select Section
- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
A/C & HEATER SERVICE PROCEDURES FOR 2003 Lexus ES300 AUTOMOBILES
Lexus -> Component Replacement & Adjustment -> Precautions -> Air Bag System Disarming & Arming -> Battery Ground Cable -> Product Compatibility
Vehicle: 2003 Lexus ES300 3.0 V6 GAS
Air Bag System Disarming & Arming
Refer to and for air bag system disarming and arming procedures.
Battery Ground Cable
Prior to service, disconnect battery ground cable ...
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus ES300 A/C & HEATER SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Lexus ES300 AUTOMOBILES
Lexus -> Disc Brakes -> Troubleshooting
Vehicle: 2003 Lexus ES300 3.0 V6 GAS
Refer to chart...
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus ES300 BRAKE SERVICE PROCEDURES
FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Lexus ES300 AUTOMOBILES
Lexus -> Fuel Filter Replacement -> 2002-06 ES300 & ES330 -> Fuel System Pressure Relief -> Removal & Installation
Vehicle: 2003 Lexus ES300 3.0 V6 GAS
Fuel System Pressure Relief
- Remove circuit opening relay located in engine compartment relay box.
- Start the engine and allow it to idle until it stalls, then turn ignition OFF.
- Remove the fuel tank cap to release air from fuel tank.
- Disconnect the battery ground cable.
- Install the circuit opening relay.
Removal & Installation
Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures ...
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus ES300 FUEL FILTER REPLACEMENT PROCEDURES
DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Lexus ES300 AUTOMOBILES
CV AXLE SHAFT, Replace -> Front
Vehicle: 2003 Lexus ES300 3.0 V6 GAS
Front
- Raise and support vehicle and support it with safety stands in proper locations.
- Remove wheel nuts and front wheels.
- Remove front fender apron seal.
- Remove drain plug from transaxle and drain transaxle fluid.
- Remove split pin and driveshaft castle nut and washer from front hub.
- Apply brake and remove lefthand axle hub nut.
- Remove lefthand front stabilizer nut and separate link assembly. If ball joint turns together with nut use suitable tool to hold stud.
- Disconnect lefthand speed sensor harness clip and separate sensor wire and hose from shock absorber. Do not damage speed...
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus ES300 DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES
STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Lexus ES300 AUTOMOBILES
Starter, Replace
Vehicle: 2003 Lexus ES300 3.0 V6 GAS
- Disconnect battery ground cable.
- Remove battery assembly.
- Remove air cleaner assembly and cleaner bracket.
- Remove air cleaner ...
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus ES300 STARTER & ALTERNATOR REPLACEMENT PROCEDURES
CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 Lexus ES300 AUTOMOBILES
Cabin Air Filter Service -> Lexus -> 2002-03 ES300
Vehicle: 2003 Lexus ES300 3.0 V6 GAS
The cabin air filter should be replaced every 7,500 miles or 6 months. The filter should be replaced more often if air flow is less than normal.
- Open the glove compartment.
- Remove the screw attaching the glove compartment brace to the glove compartment.
- Remove the two retaining pins located at the upper portion of the glove compartment, then lower the glove compartment, Fig. .
- Through the glove compartment opening, remove the cabin air filter housing, Fig. .
- Remove...
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus ES300 CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES
MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Lexus ES300 AUTOMOBILES
Lexus -> Lexus Ride Control (LRC) Indicator Lamp ->
Vehicle: 2003 Lexus ES300 3.0 V6 GAS
The electronic modulated air suspension system has internal self-diagnostic capabilities. When the ignition switch is placed in the On position, the LRC indicator lamp should light for approximately 2 seconds. If the lamp flashes continuously at 1 second intervals, the Electronic Control Unit (ECU) has stored a diagnostic trouble code.
Following diagnosis a...
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus ES300 MAINTENANCE LAMP RESET PROCEDURES
RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Lexus ES300 AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2003 Lexus ES300 3.0 V6 GAS
Lower
- Disconnect battery ground cable.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Reposition hose clamp at radiator outlet.
- Remove hose from radiator.
- Reposition hose clamp at water inlet.
- Remove hose from water inlet.
- Remove hose from vehicle.
- Reverse procedure t...
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus ES300 RADIATOR & HOSE REPLACEMENT PROCEDURES
SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Lexus ES300 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 Lexus ES300 3.0 V6 GAS
- Rotate or lift the belt tensioner arm, using a suitable tool to relieve tension from dr...
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus ES300 SERPENTINE BELT SERVICE PROCEDURES
COMPONENT LOCATION DIAGRAMS FOR 2003 Lexus ES300 AUTOMOBILES
Component location diagrams for most 2003 Lexus ES300 cars and light trucks sold in the U.S. from 1990+.
Seat Heater System Components Diagram for 2003 Lexus ES300 3.0 V6 GAS Components on diagram: |
Instrument Panel Components Diagram for 2003 Lexus ES300 3.0 V6 GAS Components on diagram: |
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus ES300 PARTS/COMPONENTS LOCATION DIAGRAMS!
WIRING DIAGRAMS FOR 2003 Lexus ES300 AUTOMOBILES
OEM drawn wiring diagrams for most 2003 Lexus ES300 cars and light trucks sold in the U.S.
2003 Lexus ES300 3.0 V6 GAS Wiring Diagram Components on diagram: |
2003 Lexus ES300 3.0 V6 GAS Wiring Diagram Components on diagram: |
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus ES300 WIRING DIAGRAMS!
TECHNICAL SERVICE BULLETINS FOR 2003 Lexus ES300 AUTOMOBILES
OEM TSB listings for most 2003 Lexus ES300 cars and light trucks sold in the U.S. from 1985+.
Document: REPAIR MANUAL SUPPLEMENT: VEHICLE PULLING TO ONE SIDE - REVISED Vehicle: 2003 Lexus ES300 3.0 V6 GAS Symptoms: |
Document: STEERING INTERMEDIATE SHAFT NOISE - REVISED Vehicle: 2003 Lexus ES300 3.0 V6 GAS Symptoms: |
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus ES300 TECHNICAL SERVICE BULLETINS!
COMPONENT/PARTS SPECIFICATIONS FOR 2003 Lexus ES300 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Lexus ES300 cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 2003 Lexus ES300 cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 2003 Lexus ES300 cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 2003 Lexus ES300 cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus ES300 SPECIFICATIONS DATA!
Shop online for auto body parts, engines, wheels, lights...
More parts |
Get the Complete Technical Service Bulletins! |
Access diagrams and repair information such as wiring diagrams, diagnosis and repair charts, manufacturer service bulletins, and OEM Part numbers of your 2003 Lexus ES300 vehicle. |
Access the Complete guide! |